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Assuming that variability of populations were non-genetic, that is, not controlled by genetic material, once again chance events alone would determine which of the organisms would survive. But phenotypic traits of a1 organisms'have a genetic component and heritable to some degree. If an individual has some form of a trait that gives him a better chance of survival in a given environment, evidently his offspring inherit the trait. This is known as differential survival. Differential survival *auld refer to the survival of individuals in an environment to which they are well adapted. Individuals who do not possess such adaptations for the given environment may not survive to reproduce. The adaptations are genetically controlled and heritable. Differential survival leads to differential reproduction of alleles responsible for the survival of the next generation. In fact it is customary to say that natural selection is synonymous with differential reproduction. The consequence of differential reproduction is not so much that individuals survive, but that such individuals are able to perpetuate their genes in subsequent generations. Thus what really survives is the set of genes.
Microorganisms Acquired During Transport, Handling and Processing of Raw Foods Microorganisms can come from truck, tanker, food handlers and equipment and utensils used in the
Primary mediators are those, which are produced before degranulation. These primary mediators are stored in granules. Some of the primary mediators are histamine, heparin, protease
In fact a real earthquake ground motion at a particular site is much more complicated that than the simple waveform depicted. It would be beneficial if we make comparison between t
Morphological changes Aquatic plants produce different kinds of leaves and produce aerenchyma (tissues with air gaps) where there be a need to do so. Also, a thick cuticle on
Write the meaning of Life Style Modification (LSM) Life style modification means diet control and doing exercises. Diet control and exercise should be planned on individual bas
Q. Where are the chemoreceptors that detect the acidity of the trigger and blood the respiratory compensation located? The chemoreceptors that participate in the ventilation co
Raw Material for Industry - impacts on biodiversity The industry, producing goods and services, relies and impacts on biodiversity directly. Much of the raw material that goes
BLOO D PRESSURE Is the result of the sum of (i) Osmotic colloidal pressure of blood (ii) Elastic recoil of blood vessel's wall.
How plants solve the problem of transporting substances throughout their tissues? In the bryophytes the substance transport is done by the diffusion. In the tracheophytes (pter
Coal can be classified into following categories in the order of rank. Peat: peat is a brown and fibrous mass. It is the first stage of coalification. It is not used as
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